CN106357832B - Looped network address list item update mechanism method and device - Google Patents
Looped network address list item update mechanism method and device Download PDFInfo
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- CN106357832B CN106357832B CN201610723312.4A CN201610723312A CN106357832B CN 106357832 B CN106357832 B CN 106357832B CN 201610723312 A CN201610723312 A CN 201610723312A CN 106357832 B CN106357832 B CN 106357832B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/255—Maintenance or indexing of mapping tables
- H04L61/2553—Binding renewal aspects, e.g. using keep-alive messages
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Abstract
The application provides a kind of looped network address list item update mechanism method and device, and applied to the network equipment in looped network, the network equipment includes master port and auxiliary port, this method comprises: blocking the auxiliary port when the looped network is normal；In the ring network fault, the auxiliary port is opened, the IP address construction ARP broadcasting packet based on other each equipment in the looped network being locally stored simultaneously is broadcasted by master port and auxiliary port；It receives other each equipment in looped network and is directed to the ARP unicast response message that received ARP broadcasting packet unicast returns；Pass through the ARP unicast response message of the another port broadcast reception in addition to the port for receiving ARP unicast response message.Each node is updated without waiting for passive again after address list item aging in the application looped network, but rapidly, actively update local address list item.
Description
Technical field
This application involves data communication field more particularly to a kind of looped network address list item update mechanism method and devices.
Background technique
In video monitoring, by a specified network equipment and it is multiple without management interchanger connect and compose looped network.Wherein, refer to
Determine network equipment similar network interchanger, there are main and auxiliary ports, and when network is normal, auxiliary port is in close state, in network
Auxiliary port is opened when abnormal.Be inexpensive interchanger without management interchanger, by administrator be configured to most basic two layers of network/
Three layers of forwarding device and dispose in a network.Fig. 1 shows the specified network equipment and connects composition without management interchanger with multiple
Ring network structure figure.It is sent under message access switch 2 with the PC (personal computer, personal computer) under interchanger 6
Monitoring device (IPC, Internet Protocol Camra, i.e. web camera) for, when network is normal, specify network
The auxiliary port of equipment is in close state, and the message that PC is sent reaches interchanger 2 according to following path (being labeled as path 1) forwarding
Under monitoring device: PC- > interchanger 6- > interchanger 5- > interchanger 4- > interchanger 3- > interchanger 2- > monitoring device.
When link failure between network failure such as interchanger 5 and interchanger 4, the network equipment is specified to decontrol auxiliary port,
At this point, the message that PC is sent need to reach the monitoring device under interchanger 2: PC- > interchanger via following path (being denoted as path 2)
6- > interchanger 7- > specified the network equipment (auxiliary the port) -> specified network equipment (master port) -> interchanger 1- > interchanger 2- > prison
Control equipment.Each interchanger on path 2 is needed to refresh local address list item such as ARP (Address when E-Packeting according to path 2
Resolution Protocol, address resolution protocol) or MAC Address (Media Access Control, physical address) table
, but the address list item of each interchanger does not refresh on path 2 at this time, could brush after the existing address performance aging such as need
Newly, this waiting process is generally long, causes in network failure, and each switch device can not fast refresh address list item.
Summary of the invention
In view of this, the application provides a kind of looped network address list item update mechanism method and device, to solve the prior art
Present in when looped network sends network failure, the address list item of each equipment refreshes slower problem in looped network.
Specifically, the application is achieved by the following technical solution:
A kind of looped network address list item update mechanism method, applied to the network equipment in looped network, the network equipment includes
Master port and auxiliary port, this method comprises:
When the looped network is normal, block the auxiliary port；
In the ring network fault, the opening auxiliary port, the IP based on other each equipment in the looped network being locally stored
Location constructs ARP broadcasting packet and is broadcasted by master port and auxiliary port；
It receives other each equipment in looped network and is directed to the ARP unicast response message that received ARP broadcasting packet unicast returns；
Pass through the ARP unicast response of the another port broadcast reception in addition to the port for receiving ARP unicast response message
Message, wherein when the port for receiving ARP unicast response message is master port, port supplemented by the another port；Work as reception
To when port, the another port is master port supplemented by the port of ARP unicast response message.
Further, the another port broadcast reception by addition to the port for receiving ARP unicast response message
ARP unicast response message include:
Received ARP unicast response message is revised as broadcasting packet, and receives ARP unicast response message by removing
Another port except port is sent.
Further, described to receive the ARP unicast sound that other each equipment are returned for received ARP broadcasting packet in looped network
The message is answered to further comprise:
Obtain the source IP address of received ARP unicast response message and by the IP address of equipment each in the looped network being locally stored
It is substituted for the source IP address of the acquisition；
This method further include:
When ring network fault is eliminated, the auxiliary port opened is closed；
It is broadcasted based on each IP address construction ARP broadcasting packet being locally stored and by master port；
Receive the ARP unicast response that other each equipment are returned for the ARP broadcasting packet unicast that this equipment is sent in looped network
Message obtains the source IP address of received ARP unicast response message and replaces the IP address of equipment each in the looped network being locally stored
Received ARP unicast response message is revised as broadcasting packet and is broadcasted by master port by the source IP address for changing the acquisition into.
Further, received ARP unicast response message is revised as broadcasting packet includes:
Two layers of target MAC (Media Access Control) address of received ARP unicast response message are revised as to the broadcast MAC address of setting, it is described
Source MAC in ARP unicast response message is constant, and modified ARP unicast response message is broadcasting packet.
Further, the detection looped network network failure is determined by following steps:
Pass through master port transmission link state-detection message；
When not receiving the link state detection messages by auxiliary port within the set time, it is determined that looped network network therefore
Barrier.
Corresponding to the looped network address list item update mechanism method of the application, the application also provides a kind of looped network address list item more
New mechanism device.
A kind of looped network address list item update mechanism device, applied to the network equipment in looped network, the network equipment includes
Master port and auxiliary port, the device include:
Port control modules block the auxiliary port, and in the ring network fault when the looped network is normal, open
The auxiliary port；
The IP address of each equipment of other in looped network is locally stored in memory module；
Broadcasting packet constructing module, if the port control modules open the auxiliary port, based on the ring being locally stored
The IP address of each equipment of other in net constructs ARP broadcasting packet；
Sending module broadcasts the ARP broadcasting packet by master port and auxiliary port；
Receiving module receives other each equipment in looped network and rings for the ARP unicast that received ARP broadcasting packet unicast returns
Answer message；
The sending module passes through the another port broadcast reception in addition to the port for receiving ARP unicast response message
ARP unicast response message, wherein when the port for receiving ARP unicast response message is master port, supplemented by the another port
Port；Supplemented by the port for receiving ARP unicast response message when port, the another port is master port.
Further, further includes:
Received ARP unicast response message is revised as broadcasting packet by message format conversion module；
The sending module is sent described wide by the another port in addition to the port for receiving ARP unicast response message
Casting text.
Further, the memory module obtains the source IP address of received ARP unicast response message and will be locally stored
Looped network in the IP address of each equipment be substituted for the source IP address of the acquisition；
The port control modules close the auxiliary port opened when ring network fault is eliminated；
The broadcasting packet constructing module constructs ARP broadcasting packet based on each IP address being locally stored；
The sending module broadcasts the ARP broadcasting packet by master port；
The receiving module receives what other each equipment in looped network were returned for the ARP broadcasting packet unicast that this equipment is sent
ARP unicast response message；
The memory module obtains the source IP address of received ARP unicast response message and will be each in the looped network being locally stored
The IP address of equipment is substituted for the source IP address of the acquisition；
Received ARP unicast response message is revised as broadcasting packet by the message format conversion module；
The sending module broadcasts the broadcasting packet by master port.
Further, the message format conversion module includes:
Two layers of target MAC (Media Access Control) address of received ARP unicast response message are revised as to the broadcast MAC address of setting, it is described
Source MAC in ARP unicast response message is constant, and modified ARP unicast response message is broadcasting packet.
Further, the Network Fault Detection module includes:
Message sending submodule is detected, master port transmission link state-detection message is passed through；
Detection sub-module, detects whether auxiliary port receives the link state detection messages within the set time；
Judging submodule, when not receiving the link state detection messages by auxiliary port within the set time, then really
Determine looped network network failure.
The application's after looped network network failure the utility model has the advantages that decontrols auxiliary port, and it is wide to forge each equipment of other in looped network
Free ARP broadcasting packet is broadcast, the active unicast after judging address conflict of each equipment returns to ARP unicast response message to network
Equipment, so that the network equipment obtains the address learning port of each equipment of other in looped network in real time, and by removing address learning port
Except another port forward the device address of each equipment into looped network, enable each equipment in looped network rapidly, actively more
New local address list item, without passively being updated again after waiting address list item aging.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the video monitoring ring network structure of the prior art；
Fig. 2 is a kind of looped network address list item update mechanism method flow diagram provided in this embodiment；
Fig. 3 is the format chart of ARP broadcasting packet provided in this embodiment；
Fig. 4 is a kind of structure chart of looped network address list item update mechanism device provided in this embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
Referring to fig. 2, a kind of looped network address list item update mechanism method provided in this embodiment, applied to the network in looped network
Equipment, the network equipment include master port and auxiliary port.Wherein, multiple nothings are connected between the master port of the network equipment and auxiliary port
Manage interchanger (each without the corresponding node of management interchanger), it is each without management interchanger can connect multiple equipment (such as
PC, IPC etc.).
The looped network address list item update mechanism method of the present embodiment includes the following steps:
S101 blocks auxiliary port when looped network is normal；
Wherein, blocking auxiliary port, to be equivalent to auxiliary port connectionless with loop network link, is merely able to receive from master port
Link state detects message, but does not have other functions.
S102, in ring network fault, the opening auxiliary port, the IP based on other each equipment in the looped network being locally stored
Location constructs ARP broadcasting packet and is broadcasted by master port and auxiliary port；
Wherein, ARP is the TCP that physical address is obtained according to (Internet Protocol, the network protocol) address IP
(Transmission Control Protocol transmission control protocol)/IP agreement.
In the present embodiment, the network equipment judges whether there is failure to looped network network real-time detection, for example, two nodes it
Between communication link disconnect so that cannot be communicated between equipment under the two nodes, it is determined that looped network network failure.
The deterministic process of network equipment progress looped network network failure are as follows:
Pass through master port transmission link state-detection message；
When not receiving link state detection messages by auxiliary port within the set time, it is determined that looped network network failure.
The size of the timing can be set as needed.In one embodiment, setting time 50ms, master port
Periodically (50ms) transmission link state-detection message is into looped network network, to identify network failure state in time, with more rapidly
Ground carries out the refreshing of each node storage address list item.
In 50ms, if auxiliary port can receive the link state detection messages sent from master port, show in looped network
Link normal communication between each node, looped network network are normal；It is examined when not receiving link state by auxiliary port in 50ms
Observe and predict text, it is determined that looped network network failure.
In this implementation, when network is normal, the network equipment collects the equipment letter of other each equipment in looped network under each node
Breath (including at least IP address) is simultaneously locally stored.Wherein, the facility information of each equipment further include the equipment MAC Address and
Address learning port.Referring to table 1, the master port of the network equipment can be by the IP address of each equipment of other in looped network, MAC Address and ground
Location study port, which corresponds, to be stored in local data base, when facilitating looped network to communicate, learns to obtain address by master port
Information.
Table 1
| IP address | MAC Address | Address learning port |
| 192.168.25.8 | 48-ea-63-0b-fb-36 | Master port |
| 192.168.25.9 | 48-ea-63-0b-fb-37 | Master port |
It is the format of ARP broadcasting packet referring to Fig. 3.The network equipment is exempted from by the IP address construction of each equipment in table 1
The IP address of each equipment is specifically respectively filled in ARP broadcasting packet " transmitting terminal IP address " and " destination IP by the ARP taken
The two fields of location " issue gratuitous ARP broadcasting packet to forge the equipment.
After having constructed the ARP broadcasting packet of each equipment, the network equipment passes through the master port of itself and the broadcast of auxiliary port
These gratuitous ARP broadcasting packets.
S103 receives other each equipment in looped network and is directed to the ARP unicast response report that received ARP broadcasting packet unicast returns
Text；
In the present embodiment, other each equipment are forged due to the network equipment and send gratuitous ARP advertisement message, other respectively set
It is standby to be directed to the ARP broadcasting packet received, judge the IP address conflict of the IP address and this equipment in ARP broadcasting packet, then
Unicast returns to ARP unicast response message to the network equipment, which carries source IP address and the source of each equipment
MAC Address.
Specifically, each equipment fills in the source IP address of the equipment and source MAC after judging address conflict
In ARP unicast response message, and the ARP unicast response message message unicast is responded to the network equipment, realization disappears
Cease the timeliness of feedback.
After the device address message that the network equipment receives other each equipment feedbacks, received ARP unicast response is obtained
The source IP address of message and the source IP address that the IP address of equipment each in the looped network being locally stored is substituted for the acquisition, referring to table
2, the IP address of other each equipment, MAC Address and address learning port are corresponded and are stored in database by the network equipment, are covered
Cover original table 1.
Table 2
| IP address | MAC Address | Address learning port |
| 192.168.25.8 | 48-ea-63-0b-fb-36 | Master port |
| 192.168.25.9 | 48-ea-63-0b-fb-37 | Auxiliary port |
As indicated shown in 2, other each equipment in looped network are from master port learned addresses list item when looped network network is normal
, after ring network fault, then equipment component will become from auxiliary port learned addresses list item, and another part equipment continues to keep from master
Port learned addresses list item.
The port of the ARP unicast response message of each equipment feedback of other in the looped network that the network equipment receives is the equipment
Address learning port, to realize after looped network breaks down, the network equipment can obtain it in time, and to learn other in looped network each
The port of device address information.
S104 passes through the ARP unicast of the another port broadcast reception in addition to the port for receiving ARP unicast response message
Response message, wherein when the port for receiving ARP unicast response message is master port, port supplemented by the another port；When
When receiving port supplemented by the port of ARP unicast response message, the another port is master port.
In the present embodiment, received ARP unicast response message is revised as broadcasting packet by the network equipment, and by except reception
Another port except to the port of ARP unicast response message is sent.
In one embodiment, received ARP unicast response message is revised as the realization of broadcasting packet by the network equipment
Steps are as follows:
The broadcast MAC that two layers of target MAC (Media Access Control) address of received ARP unicast response message are revised as setting by the network equipment
Location, the source MAC in ARP unicast response message is constant, and modified ARP unicast response message is broadcasting packet.By ARP
When unicast response message is revised as broadcasting packet, without modification, i.e., the content inside two layers encapsulation remains as original to message content
The real IP address and MAC Address of the other equipment carried inside ARP unicast response message.Each equipment being capable of Active Learning broadcast
Source IP address and MAC Address inside message (without two layers of encapsulation), due to being that looped network is respectively exchanged without management inside broadcasting packet
The real IP address and MAC Address of each equipment under machine, all devices within the scope of two layers can learn to each to hand over without management
The real IP address and MAC Address of each equipment under changing planes simultaneously update local ARP table or MAC Address list item, thus actively, rapidly
Refresh local address list item.
In one embodiment, a real-time IP address without the equipment under management interchanger is 192.168.25.8, MAC
Address is 48-ea-63-0b-fb-36, and the network equipment arrives the address information of the equipment by master port study, then the network equipment
The ARP unicast response message of the equipment is converted into broadcasting packet, is broadcasted from auxiliary port, by being returned from the auxiliary port of the network equipment
The equipment for returning ARP unicast response message receives and refreshes local address list item, and learning the equipment, (real-time IP address is
192.168.25.8 MAC Address 48-ea-63-0b-fb-36) address information.
In still another embodiment, a real-time IP address without the equipment under management interchanger is 192.168.25.9,
Source MAC is 48-ea-63-0b-fb-37, and the network equipment arrives the address information of the equipment by the study of auxiliary port, then network
The ARP unicast response message of the equipment is converted to broadcasting packet by equipment, is broadcasted from master port, by from network equipment main side
Mouthful equipment for returning to ARP unicast response message receives and refreshes local address list item, and learning the equipment, (real-time IP address is
192.168.25.9 source MAC 48-ea-63-0b-fb-37) address information.
Certainly, if some two sidelinks without management interchanger in looped network all break down, this is without pipe
Reason interchanger, which then thoroughly loses, exchange the abilities of information without management interchanger with other in looped network, this is without managing interchanger then not
It can learn the ability of the address information of each equipment under other interchangers without management in looped network by the connecting interface of itself.
Looped network address list item update mechanism method provided in this embodiment further includes following steps:
The network equipment in real time detects looped network network, if detect ring network fault eliminate, close opened it is auxiliary
Restore the speed of looped network network communication so that other each equipment in looped network network can only be learnt by master port in port.
After closing the auxiliary port opened, the network equipment is performed the following operations:
It is broadcasted based on each IP address construction ARP broadcasting packet being locally stored and by master port；
Receive the ARP unicast response that other each equipment are returned for the ARP broadcasting packet unicast that this equipment is sent in looped network
Message obtains the source IP address of received ARP unicast response message and replaces the IP address of equipment each in the looped network being locally stored
Received ARP unicast response message is revised as broadcasting packet and is broadcasted by master port, made by the source IP address for changing the acquisition into
After looped network changes, each equipment of other in looped network do not have to it is passive etc. to be refreshed, but actively, quickly update local address
List item.
The looped network address list item update mechanism method of the present embodiment, decontrols auxiliary port, and forge after looped network network failure
ARP unicast response report is responded in the free ARP broadcasting packet of each device broadcasts, the active unicast after judging address conflict of each equipment
Text so that the network equipment obtains the address learning port of each equipment of other in looped network in real time, and is learned by the address except the equipment
The another port broadcast arp unicast response message except port is practised, so that other each equipment in looped network can be rapid, main
It is dynamic to update local address list item, without passively being updated again after waiting address list item aging.
Referring to fig. 4, the present embodiment also provides a kind of looped network address list item update mechanism device, with above-mentioned looped network address list item
Update mechanism method is corresponding, can refer to the embodiment of above-mentioned looped network address list item update mechanism method to understand or explain the ring
The content of net address list item update mechanism device.The looped network address list item update mechanism device of the present embodiment includes port controlling mould
Block 101, memory module 102, broadcasting packet constructing module 103, sending module 104 and receiving module 105.
Wherein, port control modules 101 block auxiliary port when looped network is normal, and in ring network fault, open auxiliary port；
In the present embodiment, which further includes Network Fault Detection module (not shown), the Network Fault Detection mould
Block, to detect looped network network and judge whether looped network network breaks down.The fault detection module of the present embodiment is timing (example
Such as 50ms) transmission link state-detection message is into looped network network, according to detecting whether auxiliary port receives in the given time
Failure can be judged whether there is in time to link state detection messages, so that the local address list item stored in each equipment
After network failure, real-time update can be carried out.
The Network Fault Detection module of the present embodiment includes detection message sending submodule (not shown), detection submodule
Block (not shown) and judging submodule (not shown).
Wherein, detection message sending submodule passes through master port transmission link state-detection message；
Detection sub-module detects whether auxiliary port receives the link state detection messages within the set time；
Judging submodule determines whether looped network network breaks down according to the judging result of detection sub-module, when setting
The link state detection messages are not received by auxiliary port in time, it is determined that looped network network failure.
In the present embodiment, detection message sending submodule passes through master port timing (50ms) transmission link state-detection report
Whether text, detection sub-module auxiliary port of detection in setting time (50ms) receive link state detection messages, judge submodule
Block then judges looped network network with the presence or absence of failure according to the testing result of detection sub-module.Specifically, if within the set time
The link state detection messages are received by auxiliary port, it is determined that looped network network is normal；Conversely, if not leading within the set time
It crosses auxiliary port and receives the link state detection messages, it is determined that looped network network failure.
IP address of the memory module 102 each equipment of other in looped network is locally stored；
After port control modules 101 open auxiliary port, broadcasting packet constructing module 103 is then protected based on memory module 102
The IP address of each equipment of other in the looped network deposited constructs ARP broadcasting packet；
Sending module 104 broadcasts the ARP that broadcasting packet constructing module 103 constructs by master port and auxiliary port and broadcasts report
Text；
Receiving module 105 receives other each equipment in looped network and is directed to the ARP unicast that received ARP broadcasting packet unicast returns
Response message；
In the present embodiment, after other each equipment receive the ARP broadcasting packet that sending module 104 is broadcasted in looped network, meeting
Judge address conflict, then, each equipment returns to ARP unicast response message to the network equipment by the unicast of address learning port
Receiving module 105.
Memory module 102 obtains the source IP address of received ARP unicast response message and will be each in the looped network being locally stored
The IP address of equipment is substituted for the source IP address of the acquisition.
Sending module 104 passes through another in addition to the port (i.e. address learning port) for receiving ARP unicast response message
The ARP unicast response message of Single port broadcast reception, wherein when the port for receiving ARP unicast response message is master port,
Port supplemented by the another port；Supplemented by the port for receiving ARP unicast response message when port, based on the another port
Port.
In one embodiment, which further includes format converting module (not shown), and format converting module will
Received ARP unicast response message is revised as broadcasting packet, then passes through to remove by sending module 104 and receive ARP unicast response report
Another port except text sends broadcasting packet, other each equipment in looped network is enabled actively, rapidly to refresh its ground stored
Location list item.Specifically, message format conversion module includes: to repair two layers of target MAC (Media Access Control) address of received ARP unicast response message
It is changed to the broadcast MAC address of setting, the source MAC in ARP unicast response message is constant, modified ARP unicast response report
Text is broadcasting packet.
In the present embodiment, if Network Fault Detection module detects that ring network fault is eliminated, port control modules 101 are closed
The auxiliary port opened, to restore the communication speed of looped network network.
After port control modules 101 close the auxiliary port opened, port control modules 101 are eliminated in ring network fault
When, close the auxiliary port opened；
Broadcasting packet constructing module 103 constructs ARP broadcasting packet based on each IP address that memory module 102 saves；
Sending module 104 broadcasts the ARP broadcasting packet that broadcasting packet constructing module 103 constructs by master port；
Receiving module 105 receives what other each equipment in looped network were returned for the ARP broadcasting packet unicast that this equipment is sent
ARP unicast response message；
Memory module 102 obtains the source IP address of received ARP unicast response message and will be each in the looped network being locally stored
The IP address of equipment is substituted for the source IP address of the acquisition；
Received ARP unicast response message is revised as broadcasting packet by message format conversion module；
Sending module 104 passes through the broadcasting packet that master port broadcasting packet format converting module obtains.So that being sent out in looped network
After changing, each equipment of other in looped network is without passive etc. to be refreshed, but active, quickly update local address list item.
The looped network address list item update mechanism device of the present embodiment, decontrols auxiliary port, and forge after looped network network failure
ARP unicast response report is responded in the free ARP broadcasting packet of each device broadcasts, the active unicast after judging address conflict of each equipment
Text so that the network equipment obtains the address learning port of each equipment of other in looped network in real time, and is learned by the address except the equipment
The another port broadcast arp unicast response message except port is practised, so that other each equipment in looped network can be rapid, main
It is dynamic to update local address list item, without passively being updated again after waiting address list item aging.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (10)
1. a kind of looped network address list item update mechanism method, applied to the network equipment in looped network, the network equipment includes master
Port and auxiliary port, which is characterized in that this method comprises:
When the looped network is normal, block the auxiliary port；
In the ring network fault, the auxiliary port, the IP address structure based on other each equipment in the looped network being locally stored are opened
It makes ARP broadcasting packet and is broadcasted by master port and auxiliary port；
It receives other each equipment in looped network and is directed to the ARP unicast response message that received ARP broadcasting packet unicast returns；
By the ARP unicast response message of the another port broadcast reception in addition to the port for receiving ARP unicast response message,
Wherein, when the port for receiving ARP unicast response message is master port, port supplemented by the another port；When receiving ARP
Supplemented by the port of unicast response message when port, the another port is master port.
2. looped network address list item update mechanism method as described in claim 1, which is characterized in that described to be received by removing
The ARP unicast response message of another port broadcast reception except the port of ARP unicast response message includes:
Received ARP unicast response message is revised as broadcasting packet, and by except the port for receiving ARP unicast response message
Except another port send.
3. looped network address list item update mechanism method as described in claim 1, which is characterized in that other in the reception looped network
The ARP unicast response message that each equipment is returned for received ARP broadcasting packet further comprises:
It obtains the source IP address of received ARP unicast response message and replaces the IP address of equipment each in the looped network being locally stored
At the source IP address of the acquisition；
This method further include:
When ring network fault is eliminated, the auxiliary port opened is closed；
It is broadcasted based on each IP address construction ARP broadcasting packet being locally stored and by master port；
The ARP unicast response message that other each equipment are returned for the ARP broadcasting packet unicast that this equipment is sent in looped network is received,
It obtains the source IP address of received ARP unicast response message and the IP address of equipment each in the looped network being locally stored is substituted for this
Received ARP unicast response message is revised as broadcasting packet and is broadcasted by master port by the source IP address of acquisition.
4. looped network address list item update mechanism method as claimed in claim 2 or claim 3, which is characterized in that by received ARP unicast
Response message is revised as broadcasting packet
Two layers of target MAC (Media Access Control) address of received ARP unicast response message are revised as to the broadcast MAC address of setting, the ARP is mono-
The source MAC broadcast in response message is constant, and modified ARP unicast response message is broadcasting packet.
5. looped network address list item update mechanism method as described in claim 1, which is characterized in that the looped network network failure is logical
Following steps are crossed to determine:
Pass through master port transmission link state-detection message；
When not receiving the link state detection messages by auxiliary port within the set time, it is determined that looped network network failure.
6. a kind of looped network address list item update mechanism device, applied to the network equipment in looped network, the network equipment includes master
Port and auxiliary port, which is characterized in that the device includes:
Port control modules block the auxiliary port, and in the ring network fault, described in opening when the looped network is normal
Auxiliary port；
The IP address of each equipment of other in looped network is locally stored in memory module；
Broadcasting packet constructing module, if the port control modules open the auxiliary port, based in the looped network being locally stored
The IP address of other each equipment constructs ARP broadcasting packet；
Sending module broadcasts the ARP broadcasting packet by master port and auxiliary port；
Receiving module receives other each equipment in looped network and is directed to the ARP unicast response report that received ARP broadcasting packet unicast returns
Text；
The ARP that the sending module passes through the another port broadcast reception in addition to the port for receiving ARP unicast response message
Unicast response message, wherein when the port for receiving ARP unicast response message is master port, held supplemented by the another port
Mouthful；Supplemented by the port for receiving ARP unicast response message when port, the another port is master port.
7. looped network address list item update mechanism device as claimed in claim 6, which is characterized in that further include:
Received ARP unicast response message is revised as broadcasting packet by message format conversion module；
The sending module sends the broadcast by the another port in addition to the port for receiving ARP unicast response message and reports
Text.
8. looped network address list item update mechanism device as claimed in claim 7, which is characterized in that the memory module acquisition connects
The IP address of equipment each in the looped network being locally stored simultaneously is substituted for the acquisition by the source IP address of the ARP unicast response message of receipts
Source IP address；
The port control modules close the auxiliary port opened when ring network fault is eliminated；
The broadcasting packet constructing module is based on each IP address in local second tables of data and constructs ARP broadcasting packet；
The sending module broadcasts the ARP broadcasting packet by master port；
The receiving module receives the ARP that other each equipment are returned for the ARP broadcasting packet unicast that this equipment is sent in looped network
Unicast response message；
The memory module obtains the source IP address of received ARP unicast response message and by equipment each in the looped network being locally stored
IP address be substituted for the source IP address of the acquisition；
Received ARP unicast response message is revised as broadcasting packet by the message format conversion module；
The sending module broadcasts the broadcasting packet by master port.
9. looped network address list item update mechanism device as claimed in claim 7 or 8, which is characterized in that the message format turns
Changing the mold block includes:
Two layers of target MAC (Media Access Control) address of received ARP unicast response message are revised as to the broadcast MAC address of setting, the ARP is mono-
The source MAC broadcast in response message is constant, and modified ARP unicast response message is broadcasting packet.
10. looped network address list item update mechanism device as claimed in claim 6, which is characterized in that described device further includes net
Network fault detection module, to detect looped network network and judge whether looped network network breaks down, the Network Fault Detection mould
Block includes:
Message sending submodule is detected, master port transmission link state-detection message is passed through；
Detection sub-module, detects whether auxiliary port receives the link state detection messages within the set time；
Judging submodule, when not receiving the link state detection messages by auxiliary port within the set time, it is determined that ring
Net network failure.
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